On the B R A I N. 19 



Case 3. Robert H. a failor, about forty, when on board 

 of fhip, (looping down, received a violent ftroke on the back 

 part of the parietal bones by the falling of a boom ; there was 

 no wound, but the parts were much bruifed. Some months 

 after, he complained of a pain immediately under the part on 

 which he received the ftroke, which gradually grew worfe, and 

 in a year and half the pain was moft excruciating, and brought 

 on violent convulfions in both upper and lower extremities of 

 both fides, the violence of which, in fome months, put an end 

 to his life. 



On opening the head, the pofterior part of both hemifpheres of 

 the brain was found greatly inflamed and much hardened ; and 

 adhered firmly to the dura mater and the falx ; the left fide was 

 more difeafed than the right, and the dura mater, in fome 

 places where it adhered firmly, was much thickened, and almoft 

 cartilaginous. 



Case 4. Mr L. by a fall down a flair, fraclured the left pa^ 

 rietal bone. I faw him in half an hour, when he was in a flu- 

 por. He was immediately bled very plentifully, and then 

 carried home. The fracture extended from the middle of the 

 bone downwards and backwards, and was traced near to the 

 mafloid procefs ; but I could not carry the incifion any further. 

 A piece of the bone was taken out by the trepan ; a considera- 

 ble quantity of extravafated ferum and blood was found pref- 

 fing on the dura mater, which was got out; the wound was 

 drefTed, and he was bled very plentifully a fecond time ; af- 

 ter which he became fenfible, and anfwered diftinctly when 

 fpoken to, and, after fleeping fome hours, was greatly relieved, 

 but at times the right leg and arm were attacked with convulr 

 five tremors, which continued for three days, and, on the 

 fourth day, every fymptom appeared very favourable, and he 

 had the appearance of doing well ; but he frequently complain- 

 ed of a pain in his head. On the twentieth day, he was feized 



c 2 with 



